CN206718318U

CN206718318U - Foam extruder

Info

Publication number: CN206718318U
Application number: CN201720346794.6U
Authority: CN
Inventors: 陈嘉铭
Original assignee: Xin Electric Wire (shenzhen) Co Ltd
Current assignee: Xin Electric Wire (shenzhen) Co Ltd
Priority date: 2017-04-01
Filing date: 2017-04-01
Publication date: 2017-12-08
Anticipated expiration: 2027-04-01

Abstract

The utility model discloses one kind foaming extruder, including extruder body, high pressure injection nitrogen device and head of extruding machine, wherein：The high pressure injection nitrogen device is arranged on the side of extruder body, include barrel and screw rod in the extruder body, the high pressure injection nitrogen device includes escape pipe, the screw jacket has a structure of supplying gas, supplied gas structure includes fixed outer shroud and rotates inner ring, the rotation inner ring is fixedly connected with screw rod, the internal diameter of the rotation inner ring is identical with the internal diameter of barrel, the fixed outer shroud is fixed with barrel, the escape pipe leads to fixed outer shroud and rotation inner ring through fixed outer shroud, injection well is provided with the rotation inner ring, the screw rod includes the air admission hole and venthole of mutual conduction, pass through above-mentioned setting, gas first passes through the fixed position of structure and screw rod on screw rod of supplying gas and carries out gas transmission, gas transmission is stable, stomata is uniform, the product quality of output is high.

Description

Foam extruder

Technical field

A kind of cable process equipment is the utility model is related to, more particularly to a kind of foaming extruder.

Background technology

At present, the Chinese patent that Authorization Notice No. is CN204496974U discloses a kind of trickle data line physical blowing life Produce equipment, including be sequentially connected conductor dynamic paying out machine structure, conductor preheater, high pressure nitrogen-filling system, foaming extrusion main frame, work Dynamic temperature control water tank, fixed cold rinse bank, high speed double wheel hauling machine, pressure-vaccum hydrophone, concentricity meter, concavo-convex detector, eccentric inspection Survey instrument, buffering tension bracket, high-frequency spark machine and automatic removable disk winder；Each part of complete equipment is controlled by electric control box.

But the high pressure injection nitrogen of above-mentioned production equipment is only directly injected into the side of screw rod from side wall, in screw rod rotation process, The gas flow difference of the different injections of sizing material thickness, which can not be controlled accurately, is uniformly sent into nitrogen in sizing material.

Utility model content

The purpose of this utility model is to provide a kind of foaming extruder of nitrogen conveying uniform.

Above-mentioned technical purpose of the present utility model technical scheme is that：, a kind of foaming extruder, Including extruder body, high pressure injection nitrogen device and head of extruding machine, wherein：The high pressure injection nitrogen device is arranged on the side of extruder body Face, the extruder body is interior to include barrel and screw rod, and the high pressure injection nitrogen device includes escape pipe, and the screw jacket has one Supply gas structure, the structure of supplying gas includes fixed outer shroud and rotates inner ring, and the rotation inner ring is fixedly connected with screw rod, described turn The internal diameter of dynamic inner ring is identical with the internal diameter of barrel, and the fixed outer shroud is fixed with barrel, and the escape pipe passes through fixed outer shroud to lead to To between fixed outer shroud and rotation inner ring, injection well is provided with the rotation inner ring, the screw rod includes entering for mutual conduction Stomata and venthole, the air admission hole are connected with the injection well on the peak for being arranged on screw flight, and the screw rod is in spiral shell Line thickness minimum position is evenly arranged with some ventholes.

By using above-mentioned technical proposal, the escape pipe of high pressure injection nitrogen device leads between fixed outer shroud and rotation inner ring, then The air inlet of screw rod is delivered to by the injection well rotated in inner ring, then is discharged by the venthole of screw thread minimum point, screw thread is minimum Point material thickness is maximum, and admission space is maximum, hence into nitrogen be easier it is scattered；In screw rod rotation process, inner ring is rotated Screw rod is followed together to rotate, the nitrogen between inner ring fixation outer shroud is rotated is stable to be conveyed into screw rod, so as to the nitrogen of output Gas homogeneous constant, foaming effect are good.

The utility model is further arranged to：Diameter is provided between the rotation inner ring and fixed outer shroud to be equal in rotation Ring and the ball of fixed outer shroud spacing.

By using above-mentioned technical proposal, ball plays support and the work being oriented to when rotating inner ring and rotating to rotating inner ring With guarantee rotates inner ring and follows the stable rotation of screw rod.

The utility model is further arranged to：The ball is arranged to two circle balls arranged side by side, and the injection well is arranged on Rotate the widthwise central position of inner ring.

By using above-mentioned technical proposal, all the time in the state not being blocked at the center of two row's balls, so as to steady Fixed supplies gas to screw rod, and avoiding being blocked by roller causes outlet uneven.

The utility model is further arranged to：The screw rod includes thread bush and interior bar, and the interior bar is in thread bush direction One end of motor is provided with locking disk, and the locking disk is threadedly connected in interior bar and contradicted with thread bush.

By using above-mentioned technical proposal, thread bush is fixed using the locking disk of threaded connection, can provide compared with Big pressure.

The utility model is further arranged to：Beam is provided between the locking disk and thread bush.

By using above-mentioned technical proposal, beam avoids locking disk and thread bush rigid collision, avoids damaging, and improves spiral shell Bar service life.

The utility model is further arranged to：A threaded fixing hole is provided with the periphery of the locking disk, it is described Fixing groove is correspondingly arranged in interior bar, being equipped with locking bolt in the fixing hole contacts at fixing groove.

By using above-mentioned technical proposal, locking disk is fixed in interior bar using bolt, bolt limitation locking disk turns Dynamic, locking disk contradicts under locking bolt and the dual fixation of screw thread with thread bush, ensures that structure is steady to the good spacing of thread bush It is fixed.

The utility model is further arranged to：Protective plate is provided with before the head of extruding machine.

By using above-mentioned technical proposal, the setting of protective plate avoids extruder, and worker or foreign matter touch in the course of the work Extrusion mould is contacted, is caused danger, ensures the safety of process, and due to being discharged in the eye mould from extruder for the cable that foams When, it is necessary to which constant cooling, protective plate, which can be formed, is relatively isolated environment, the convenient cable to machining is configured cooling ring Border, so as to the cable better quality of output.

The utility model is further arranged to：Connecting rod is connected with the extruder body, is rotated in the connecting rod Folding axle is connected with, the protective plate upper end has connection ring, and the connection ring is enclosed on folding axle and rotated, the extruder sheet Body has arresting lever in the lower section of head of extruding machine, and the vertical range between the arresting lever and connecting rod is less than the length of protective plate Degree, the protective plate center is provided with form.

By using above-mentioned technical proposal, coordinated using folding axle and connection ring and enable protective plate to rotate folding, It is to open protective plate to need operation, it is not necessary to protective plate is put down when operating, protective plate contradicts with arresting lever under gravity, prevents Only protective plate collides with head of extruding machine, avoids head from damaging, while protective plate center is additionally provided with form, and worker can pass through Working condition at form observation head of extruding machine, it is convenient that extruder is monitored.

The utility model is further arranged to：There is leg below the supporting plate, the arresting lever be arranged to two and Some parallel bearing bars are connected between each other, and the leg width is more than the spacing of bearing bar, the leg and bearing bar Contradict.

By using above-mentioned technical proposal, parallel bearing bar is connected between arresting lever, so as to below head of extruding machine A platform is formed, can be used for the debris such as place tool, gloves, the leg below support bar is contradicted above bearing bar, branch The lower section of strut has support force, so as to have more preferable enabling capabilities, Stability Analysis of Structures to head.

The utility model is further arranged to：The connection ring inner elastic is connected with some folding projections, the folding Folding recess is correspondingly arranged on axle, the end of the folding projection is hemispherical.

By using above-mentioned technical proposal, folding projection and folding mating recesses so that protective plate to turn to folding convex When block and folding mating recesses, protective plate rotate can by certain spacing, so as to control turn to appropriate location can It is easy to use without always with hand steered to stop.

The utility model is further arranged to：The folding projection is set in connection ring interior edge even circumferential.

By using above-mentioned technical proposal, folding projection and folding recess are all axially uniformly being arranged, so as to rotation process In, the folding projection and folding recess that often turn an angle all can form cooperation, hinder motion, and resistance is larger, positioning Effect is good.

Brief description of the drawings

Fig. 1 is the high pressure injection nitrogen device of embodiment and the structural representation at barrel；

Fig. 2 is the attachment structure schematic diagram between gas injection structure and screw rod in embodiment；

Fig. 3 is venthole on screw rod in embodiment and the structural representation of air inlet pore size distribution；

Fig. 4 is the overall structure diagram of embodiment；

Fig. 5 is the structural representation that connection ring coordinates with folding axle in embodiment.

In figure：1st, extruder body；2nd, high pressure injection nitrogen device；3rd, head of extruding machine；4th, barrel；5th, screw rod；6th, escape pipe；7、 Fixed outer shroud；8th, inner ring is rotated；9th, injection well；10th, air admission hole；11st, venthole；12nd, ball；13rd, thread bush；14th, interior bar； 15th, locking disk；16th, beam；17th, locking bolt；18th, protective plate；19th, connecting rod；20th, folding axle；21st, connection ring；22nd, only Lever；23rd, form；24th, folding projection.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

Embodiment：

One kind foaming extruder, reference picture 4, including extruder body 1, head of extruding machine 3 and high pressure injection nitrogen device 2.

Referring to figs. 1 to Fig. 3, high pressure injection nitrogen device 2 is arranged on the side of extruder body 1, and extruder body 1 includes barrel 4, Screw rod 5 is worn in barrel 4, the escape pipe 6 of high pressure injection nitrogen device 2 is supplied gas by structure of supplying gas, and structure of supplying gas includes fixed outer Ring 7, rotating inner ring 8 and be connected to fixed outer shroud 7 and rotate the ball 12 between inner ring 8, fixed outer shroud 7 is fixed with barrel 4, with Escape pipe 6 is connected, and nitrogen is entered within fixed outer shroud 7, rotates inner ring 8 and is fixed with screw rod 5, be relatively fixed outer shroud 7 and rotate, turns Injection well 9 in dynamic inner ring 8 keeps turning on the air admission hole 10 on screw rod 5, the conveying gas that can stablize；5 enterprising stomata of screw rod 10 are located at thickest position, and venthole 11 is located at the wall thickness minimum position of screw rod 5, supplied gas；Ball 12 is provided with two rows, Injection well 9 is arranged on the centre position of two row's ball 12, and in the rolling process of ball 12, injection well 9 will not be stopped, ensures Stable gas transmission.

Reference picture 1, screw rod 5 include interior bar 14 and the thread bush 13 being enclosed in interior bar 14, and interior bar 14 is close in thread bush 13 The threaded one end of motor is connected with locking disk 15 and is fixed, and has beam 16 between locking disk 15 and thread bush 13, The side of locking disk 15 is also provided with fixing hole, is equipped with fixing hole in the fixing groove that locking bolt 17 is contradicted in interior bar 14.

Reference picture 4 and Fig. 5, are fixed with connecting rod 19 on extruder body 1, connecting rod 19 away from extruder body 1 one End is equipped with folding axle 20, and protective plate 18 is hinged on folding axle 20 and blocked in the front of head of extruding machine 3, extruder sheet Arresting lever 22 is further fixed on body 1, is arranged on the lower section of head of extruding machine 3, is blocked on the motion path of protective plate 18, avoids Protective plate 18 collides with head of extruding machine 3, and the center of protective plate 18 is provided with transparent plastic form 23；Two connecting rods 19 On be fixedly connected with folding axle 20, connection ring 21 be provided with protective plate 18 be enclosed on folding axle 20 and rotate, can be stretched in connection ring 21 Contracting is connected with a circle folding projection 24, a circle folding recess is correspondingly arranged on folding axle 20, it is recessed that folding projection 24 withstands on folding When at mouthful, protective plate 18 is limited, and will not be rotated automatically when not acted on by external force.

This specific embodiment is only that it is not to limitation of the present utility model, ability to explanation of the present utility model Field technique personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but As long as all protected in right of the present utility model by Patent Law.

Claims

1. one kind foaming extruder, including extruder body (1), high pressure injection nitrogen device (2) and head of extruding machine (3), its feature exist In：The high pressure injection nitrogen device (2) is arranged on the side of extruder body (1), includes barrel (4) in the extruder body (1) With screw rod (5), the high pressure injection nitrogen device (2) includes escape pipe (6), a structure of supplying gas is cased with outside the screw rod (5), described to send Depressed structure includes fixed outer shroud (7) and rotates inner ring (8), rotates inner ring (8) and is fixedly connected with screw rod (5), the rotation inner ring (8) internal diameter is identical with the internal diameter of barrel (4), and the fixed outer shroud (7) is fixed with barrel (4), and the escape pipe (6) is through admittedly Determine outer shroud (7) to lead between fixed outer shroud (7) and rotation inner ring (8), injection well (9), institute are provided with the rotation inner ring (8) Stating screw rod (5) includes the air admission hole (10) and venthole (11) of mutual conduction, and the air admission hole (10) is with being arranged on screw rod (5) spiral shell Injection well (9) on the peak of line is connected, and the screw rod (5) is evenly arranged with some outlets in thickness of thread minimum position Hole (11).

A kind of 2. foaming extruder according to claim 1, it is characterised in that：The rotation inner ring (8) and fixed outer shroud (7) diameter is provided between and is equal to the ball (12) for rotating inner ring (8) and fixed outer shroud (7) spacing.

A kind of 3. foaming extruder according to claim 2, it is characterised in that：The ball (12) is arranged to arranged side by side two Ball (12) is enclosed, the injection well (9) is arranged on the widthwise central position for rotating inner ring (8).

A kind of 4. foaming extruder according to claim 1, it is characterised in that：The screw rod (5) includes thread bush (13) With interior bar (14), the interior bar (14) is provided with locking disk (15), the locking disk in thread bush (13) towards one end of motor (15) it is threadedly connected in interior bar (14) and is contradicted with thread bush (13).

A kind of 5. foaming extruder according to claim 4, it is characterised in that：The locking disk (15) and thread bush (13) Between be provided with beam (16).

A kind of 6. foaming extruder according to claim 4, it is characterised in that：Opened on the periphery of the locking disk (15) There is a threaded fixing hole, be correspondingly arranged on fixing groove on the interior bar (14), locking bolt is equipped with the fixing hole (17) contact at fixing groove.

A kind of 7. foaming extruder according to claim 1, it is characterised in that：It is provided with before the head of extruding machine (3) Protective plate (18).

A kind of 8. foaming extruder according to claim 7, it is characterised in that：It is connected with the extruder body (1) Connecting rod (19), folding axle (20) is rotatably connected on the connecting rod (19), protective plate (18) upper end has connection ring (21), the connection ring (21) is enclosed on folding axle (20) and rotated, and the extruder body (1) is under head of extruding machine (3) Side has arresting lever (22), and the vertical range between the arresting lever (22) and connecting rod (19) is less than the length of protective plate (18) Degree, protective plate (18) center is provided with form (23).

A kind of 9. foaming extruder according to claim 8, it is characterised in that：Connection ring (21) the inner elastic connection There are some folding projections (24), folding recess, the end of the folding projection (24) are correspondingly arranged on the folding axle (20) To be hemispherical.

A kind of 10. foaming extruder according to claim 9, it is characterised in that：The folding projection (24) is in connection ring (21) interior edge even circumferential is set.